CN214359351U - Laminating equipment for PVC (polyvinyl chloride) film - Google Patents

Abstract

The utility model relates to a laminating equipment of PVC film, the technical field who relates to laminating equipment, it includes the support frame, accept roller and pinch roller level respectively rotate and set up on the support frame, and the pinch roller is located the top of accepting the roller, be provided with film feeding mechanism and plastic film feeding mechanism on the support frame, the support frame is improved level and is rotated and be provided with the smoothing roller that is located between plastic film feeding mechanism and the pinch roller, the smoothing roller supplies the plastic film between plastic film feeding mechanism and the pinch roller to bypass, the middle part position of smoothing roller is the convergent form to both ends position. Through setting up the smoothing roller that supplies the plastic film to walk around for the plastic film can be smoothed by the smoothing roller earlier when entering into between accepting the roller and the pinch roller, thereby reduces the fold volume of plastic film as far as, and then makes the plastic film can comparatively level and smooth cover on the film, thereby improves the quality of selling of product.

Description

Laminating equipment for PVC (polyvinyl chloride) film

Technical Field

The application relates to the field of laminating equipment, in particular to laminating equipment for a PVC film.

Background

The PVC film is mainly composed of polyvinyl chloride, and other components are added to enhance the heat resistance, toughness, ductility and the like of the PVC film, so that the PVC film is a synthetic material which is popular and widely applied in the world nowadays. After the production of the PVC film, the surface of the film is usually covered with a plastic film to prevent the film from being scratched by a sharp object during transportation.

In the film laminating process of the related art, a plastic film is laminated on the film, and the plastic film and the film are passed through between the pressure roller and the receiving roller. And then pressing the plastic film on the film by using a pressing roller, and then coiling the plastic film and the film together. However, if the plastic film is blown by wind or has wrinkles due to self problems, the crumpling roller directly presses the wrinkled plastic film on the film, thereby affecting the selling quality of products.

With respect to the related art in the above, the inventors consider that there is a drawback affecting the selling quality of products.

SUMMERY OF THE UTILITY MODEL

In order to improve the quality of selling of product, this application provides a laminating equipment of PVC film.

The application provides a laminating equipment of PVC film adopts following technical scheme:

the utility model provides a laminating equipment of PVC film, includes support frame, accepting roller and pinch roller, accepting roller with the pinch roller respectively the level rotate set up in on the support frame, just the pinch roller is located accepting roller's top, be provided with film feeding mechanism and plastic film feeding mechanism on the support frame, the support frame is improved level and is rotated and be provided with and be located plastic film feeding mechanism with smooth roller between the pinch roller, smooth roller supplies plastic film feeding mechanism with plastic film between the pinch roller bypasses, the middle part position to the both ends position of smoothing roller is the convergent form.

Through adopting above-mentioned technical scheme, through setting up the smoothing roller that supplies the plastic film to walk around for the plastic film can be smoothed by the smoothing roller earlier when entering into between accepting the roller and the pinch roller. Thereby reduce the fold volume of plastic film as far as, and then make the plastic film can be comparatively smooth cover on the film to improve the quality of selling of product. Simultaneously, because the middle part to both ends of the smoothing roller are the convergent form, have good guide effect to make the plastic film can be under the guide effect on smoothing roller surface and spread towards the both ends of smoothing roller. Thereby further reduced the fold volume of plastic film, and then made the plastic film can be comparatively smooth the pressure on the film, further improved the quality of selling of product.

Optionally, plastic film feeding mechanism include two respectively horizontal sliding set up in installation piece and horizontal rotation on the support frame set up in every pay-off axle on the installation piece, two in the pay-off axle is total to the axle center, and is used for inserting the book core to the plastic film coiled material respectively, two the installation piece is used for being close to each other or keeping away from, every the installation piece with all be provided with drive assembly between the support frame, drive assembly is used for driving correspondingly the horizontal sliding of installation piece.

Through adopting above-mentioned technical scheme, put the plastic film coiled material between two pay-off axles, drive corresponding installation piece through drive assembly and drive corresponding pay-off axle motion to make two pay-off axles be close to each other. When the two feeding shafts are respectively inserted from the corresponding ports of the plastic film coiled material and the side walls of the feeding shafts are tightly propped against the inner wall of the winding core of the plastic film coiled material, the feeding operation of the plastic film coiled material can be realized. When the plastic film is pulled, the plastic film coiled material can drive the two feeding shafts to rotate, so that the feeding operation of the plastic film is realized. Through setting up simple structure, simple operation's plastic film feeding mechanism, realize the steady pay-off of plastic film to improve laminating equipment's stability in use. Simultaneously, the change of plastic film coiled material of being convenient for of this design to improve the work efficiency when changing the plastic film coiled material, and then improve production efficiency.

Optionally, the feeding shaft is connected with the corresponding mounting block through a manual tension controller.

Through adopting above-mentioned technical scheme, be connected through utilizing manual tension control appearance and pay-off axle for manual tension control appearance can provide certain damping for the rotation of pay-off axle. So that the plastic film can be tensioned as much as possible when it passes around the smoothing roller. Thereby further reduce the fold volume of plastic film, and then guarantee that the plastic film can be smooth the pressure on the film to improve the quality of selling of product. Simultaneously, the producer can also adjust the rotational damping of pay-off axle through manual tension control appearance to realize the regulation of plastic film tensioning dynamics, and then improve and use the suitability.

Optionally, each driving assembly comprises an installation plate and a screw rod in threaded connection with the corresponding installation plate, and the two screw rods are respectively in rotating connection with the corresponding installation blocks.

By adopting the technical scheme, the screw rod is rotated, and then, the corresponding mounting block can be driven to horizontally slide through the screw rod. Through setting up simple structure, simple operation, the stable drive assembly of drive effect, realize the quick adjustment of installation piece and pay-off axle position to improve the work efficiency when changing the plastic film coiled material.

Optionally, two of the screw rods are respectively provided with a hand wheel.

By adopting the technical scheme, the rapid rotation of the lead screw by production personnel is facilitated by arranging the hand wheel. Thereby further improve the work efficiency when carrying out position control to installation piece and pay-off axle, and then further improve the work efficiency when changing the plastic film coiled material.

Optionally, a plurality of yielding grooves are respectively formed in the side walls, close to one end, of the two feeding shafts, the yielding grooves are distributed along the corresponding circumferential direction of the feeding shafts, each yielding groove is internally provided with a tight supporting column in a sliding mode along the radial direction of the feeding shaft, and the feeding shafts are provided with a plurality of corresponding control mechanisms for driving the tight supporting columns to slide.

Through adopting above-mentioned technical scheme, when the pay-off axle inserted to the plastic film coiled material in, through the corresponding a plurality of tight post movements of supporting of control mechanism drive to make to support tight post and support tightly with the roll core inner wall of plastic film coiled material respectively, can realize the fixed of plastic film coiled material. Can follow the radial direction of pay-off axle through the setting and carry out gliding tight post that supports to make the whole external diameter of pay-off axle can adjust, and then make the plastic film coiled material that the pay-off axle can the different internal diameters of adaptation, improve and use the suitability.

Optionally, the end surfaces of the two feeding shafts which are close to each other are respectively provided with a control groove which is communicated with the corresponding abdicating grooves, the control mechanism comprises control rods horizontally arranged in each control groove in a sliding manner and truncated cone-shaped control blocks arranged on each control rod, the two control rods are used for being mutually abutted and are both positioned between the two control blocks, the diameter of one end of the control block, which is close to the corresponding control rod, is larger than that of the other end of the control block, the side wall of the control block is abutted against the end parts of the corresponding plurality of abutting columns, one end of each abutting column, which is close to the corresponding control block, is provided with a mounting ring, the port of each abdicating groove is provided with a support ring, the mounting ring is connected with the corresponding support ring through a return spring, and one ends, far away from each other, of the two control blocks are respectively connected with the corresponding groove bottoms of the control grooves through compression springs.

Through adopting above-mentioned technical scheme, be close to each other when two pay-off axles to two control lever back of butt each other, along with the continuation of two pay-off axles are close to each other, two control levers retract gradually in the corresponding control slot. Meanwhile, the two control blocks move synchronously under the driving of the corresponding control rods, and then the corresponding plurality of abutting columns are pushed by the side walls of the corresponding control rods to be away from each other. When a plurality of support posts support with the roll core inner wall of plastic film coiled material tightly respectively, can realize the fixed of plastic film coiled material. When two pay-off axles kept away from each other, the control block drives the control lever and resets under the drive of corresponding compression spring, and the collar drives under the drive of corresponding reset spring and supports the post and reset. The plastic film web can then be removed. Through setting up simple structure, simple operation's control mechanism, realize supporting the quick steady motion of tight post. Thereby make to support tight post and can support tightly fast with the inner wall of rolling up the core, work efficiency when further improving the material loading operation to the plastic film coiled material. Simultaneously, this design benefit, the in-process that two pay-off axles are close to each other can realize supporting tightly fixed of plastic film coiled material to improve the use convenience.

Optionally, the support frame is horizontally rotated and is provided with a plurality of tensioning rollers which are respectively located between the film feeding mechanism and the pressing rollers, and the tensioning rollers are used for the film to be sequentially wound.

Through adopting above-mentioned technical scheme, through setting up the tensioning roller for the film is when carrying out the pay-off operation, and the tensioning roller can make the film be in the tensioning state as far as. Therefore, the film can enter between the pressing roller and the receiving roller as flatly as possible, and the feeding stability of the film is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the smoothing roller for the plastic film to bypass, when the plastic film enters between the receiving roller and the pressing roller, the plastic film can be smoothed by the smoothing roller, so that the wrinkle amount of the plastic film is reduced as much as possible, and the plastic film can be flatly covered on the film, so that the selling quality of products is improved;

the driving assembly with simple structure, convenient operation and stable driving effect is arranged, so that the positions of the mounting block and the feeding shaft can be quickly adjusted, and the working efficiency of replacing the plastic film coiled material is improved;

can follow the radial direction of pay-off axle through the setting and carry out gliding tight post that supports to make the whole external diameter of pay-off axle can adjust, and then make the plastic film coiled material that the pay-off axle can the different internal diameters of adaptation, improve and use the suitability.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an embodiment of the present application during use.

Fig. 3 is a schematic structural diagram of a pressure roller in the embodiment of the present application.

Fig. 4 is a partial sectional view of a plastic film feeding mechanism in an embodiment of the present application.

Fig. 5 is an enlarged schematic view of the region a in fig. 4.

Description of reference numerals: 1. a support frame; 2. a receiving roller; 3. a pressure roller; 4. a film feeding mechanism; 41. a feed roller; 42. a servo motor; 5. a plastic film feeding mechanism; 51. mounting blocks; 52. a feed shaft; 6. a drive motor; 7. a drive gear; 8. a driven gear; 9. a tension roller; 10. a tension controller; 11. a drive assembly; 111. mounting a plate; 112. a screw rod; 12. a hand wheel; 13. a yielding groove; 14. tightly abutting against the column; 15. a control mechanism; 151. a control lever; 152. a control block; 16. a control slot; 17. a compression spring; 18. a limiting ring; 19. a mounting ring; 20. a support ring; 21. a return spring; 22. smoothing rollers; 23. a retaining ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses laminating equipment for a PVC film. Referring to fig. 1 and 2, the film laminating device for the PVC film comprises a support frame 1, and a film feeding mechanism 4 for feeding the film and a plastic film feeding mechanism 5 for feeding the plastic film are arranged on the support frame 1. Meanwhile, the supporting frame 1 is horizontally and rotatably connected with a receiving roller 2 and a pressing roller 3, the axial leads of the receiving roller 2 and the pressing roller 3 are parallel, and the pressing roller 3 is positioned right above the receiving roller 2.

The film is fed through the film feeding mechanism 4, and meanwhile, the plastic film is fed through the plastic film feeding mechanism 5, so that the plastic film covers the upper surface of the film. When the plastic film and the film pass between the pressure roller 3 and the receiving roller 2, the pressure roller 3 can press the plastic film on the film so as to realize the film covering operation of the film.

Referring to fig. 1 and 3, a driving motor 6 is fixedly connected to a side wall of the support frame 1, and end portions of the receiving roller 2 and the pressing roller 3, which are close to one end of the driving motor 6, respectively penetrate through the outside of the support frame 1 and form a running fit with the support frame 1. The output shaft of the driving motor 6 is fixedly connected with the end part of the pressing roller 3, so that stable driving force is provided for the rotation of the pressing roller 3. The output shaft of the driving motor 6 is fixedly sleeved with a driving gear 7, and the end part of the carrying roller 2 is fixedly sleeved with a driven gear 8 meshed with the driving gear 7.

Referring to fig. 2 and 3, when the driving motor 6 drives the pressing roller 3 and the driving gear 7 to rotate, the driven gear 8 can drive the receiving roller 2 to synchronously rotate in different directions under the driving of the driving gear 7, so that the linkage of the receiving roller 2 and the pressing roller 3 is realized. Meanwhile, the carrying roller 2 and the pressing roller 3 synchronously rotate in different directions, and stable conveying force can be provided for the movement of the plastic film and the film, so that the plastic film and the film can be conveniently fed and subsequently rolled.

Referring to fig. 1 and 2, the film feeding mechanism 4 includes a horizontally disposed feed roller 41, and the feed roller 41 is provided for the winding core of the film roll to be wound. One end part of the feeding roller 41 is in rotating fit with the support frame 1 through a bearing, and the axial lead of the feeding roller 41 is parallel to the pressing roller 3. Meanwhile, a servo motor 42 is fixedly connected to the support frame 1, and an output shaft of the servo motor 42 is fixedly connected with an end portion of the feed roller 41, which is located at one end of the support frame 1. Thereby providing a stable driving force for the rotation of the feed roller 41 to achieve smooth feeding of the film.

Referring to fig. 1 and 2, a plurality of tension rollers 9 are horizontally and rotatably connected to the support frame 1, the plurality of tension rollers 9 are respectively located between the feeding roller 41 and the pressing roller 3, and the axial lines of the plurality of tension rollers 9 are respectively parallel to the axial line of the pressing roller 3. Meanwhile, the tensioning rollers 9 are arranged in a staggered manner, and the films are sequentially wound by the tensioning rollers 9, so that the films can be in a tensioning state when being fed.

Referring to fig. 1 and 2, the plastic film feeding mechanism 5 includes two mounting blocks 51 horizontally slidably connected to the support frame 1, the two mounting blocks 51 are symmetrically distributed on two sides of the pressure roller 3, and the two mounting blocks 51 are used for approaching or departing from each other. The upper end surfaces of the two mounting blocks 51 are respectively provided with a manual tension controller 10, and each manual tension controller 10 is horizontally and rotatably connected with a feeding shaft 52, so that the rotation torque of the feeding shafts 52 can be adjusted.

Referring to fig. 1 and 4, the axial lines of the two feeding shafts 52 are parallel to the axial line of the pressure roller 3, and the two feeding shafts 52 are coaxial and located above the pressure roller 3. The two feed shafts 52 are intended to be brought closer to each other by the respective mounting blocks 51, and the feed shafts 52 are intended to be inserted into the cores of the plastic film web to effect the fixing of the plastic film web.

The plastic film coil is placed between two feed shafts 52, and then two mounting blocks 51 are driven to drive the corresponding feed shafts 52 to move. So that the two feeding shafts 52 are respectively inserted from the corresponding ports of the plastic film coil, and when the side walls of the feeding shafts 52 are tightly abutted against the inner wall of the roll core of the plastic film coil, the fixation of the plastic film coil can be realized.

Referring to fig. 1 and 4, in order to achieve the rapid fixing of the plastic film roll, a driving assembly 11 is disposed between each mounting block 51 and the supporting frame 1, and the driving assembly 11 is used for driving the corresponding mounting block 51 to horizontally slide. Each drive assembly 11 comprises a mounting plate 111 fixedly connected vertically to the support frame 1 and the two mounting blocks 51 are located between the two mounting plates 111.

Referring to fig. 1 and 4, a screw rod 112 horizontally penetrates each mounting plate 111, and the screw rod 112 is screwed with the corresponding mounting plate 111, and meanwhile, the ends of the two screw rods 112 close to each other are rotatably connected with the corresponding mounting blocks 51, respectively. When the screw rod 112 rotates, the corresponding mounting block 51 is driven to drive the corresponding feeding shaft 52 to move horizontally. Meanwhile, the end portions of the two screw rods 112 far away from each other are fixedly connected with hand wheels 12 respectively, so that a user can rotate the screw rods 112 quickly.

Referring to fig. 5, a plurality of yielding grooves 13 are respectively formed in the side walls of the two feeding shafts 52 near one end of each feeding shaft along the respective radial direction, and the plurality of yielding grooves 13 are uniformly distributed along the circumferential direction of the corresponding feeding shaft 52. Meanwhile, a tight supporting column 14 is connected in each yielding groove 13 in a sliding manner along the radial direction of the feeding shaft 52, and the tight supporting column 14 is used for being abutted against the inner wall of the winding core of the plastic film coiled material. When a plurality of abutting columns 14 on the same feeding shaft 52 respectively extend out of the corresponding yielding grooves 13, the overall outer diameter of the feeding shaft 52 is changed, so that the feeding shaft 52 can be adapted to plastic film coiled materials with different inner diameters of winding cores.

Referring to fig. 5, in order to realize the fast fixing of the plastic film coil, each feeding shaft 52 is provided with a control mechanism 15 for driving the corresponding plurality of tightening posts 14 to slide. The center positions of the end surfaces of the two feeding shafts 52 close to each other are respectively provided with a control groove 16, and the control grooves 16 are communicated with the corresponding abdicating grooves 13. The control mechanism 15 is a control rod 151 horizontally slidably connected in each control slot 16, and the two control rods 151 are coaxial.

Referring to fig. 5, the ends of the two control rods 151 that are far away from each other are fixedly connected with truncated cone-shaped control blocks 152, respectively, and the diameter of one end of each control block 152 near the corresponding control rod 151 is larger than that of the other end thereof. At the same time, the side wall of the control block 152 abuts against the end of the corresponding plurality of abutment posts 14.

When the two feeding shafts 52 approach each other and the two control levers 151 abut against each other, the two control levers 151 drive the corresponding control blocks 152 to move toward the bottom of the corresponding control slot 16 as the two feeding shafts 52 continue to approach each other. At this time, the corresponding fastening posts 14 can be pushed by the side walls of the corresponding control blocks 152 to extend out of the corresponding abdicating grooves 13 and abut against the inner wall of the winding core of the plastic film coil, so as to fix the plastic film coil.

Referring to fig. 5, the two control slots 16 are respectively provided with a compression spring 17, one end of the compression spring 17 is fixedly connected with the slot bottom of the corresponding control slot 16, and the other end is fixedly connected with the corresponding control block 152. So that when the two feeding shafts 52 are far away from each other, the two control blocks 152 can drive the corresponding control rods 151 to move under the driving of the corresponding compression springs 17, thereby realizing the resetting of the control rods 151.

Referring to fig. 5, the limiting rings 18 are fixedly connected to the ports of the two control grooves 16 along the respective circumferential directions, and the limiting rings 18 are used for blocking the corresponding control block 152, so as to achieve the limitation of the maximum sliding distance between the control block 152 and the control rod 151.

Referring to fig. 5, a mounting ring 19 is fixedly sleeved on one end of each fastening column 14 close to the corresponding control block 152, and a support ring 20 is fixedly connected to a port of each abdicating groove 13 along the respective circumferential direction. Each abutting column 14 is sleeved with a return spring 21, one end of each return spring 21 is fixedly connected with the corresponding mounting ring 19, and the other end of each return spring 21 is fixedly connected with the corresponding support ring 20. The inner wall of each of the receding grooves 13 near one end of the control block 152 is fixedly connected with a positioning ring 23 along the circumferential direction thereof, and the mounting ring 19 is located between the corresponding supporting ring 20 and the corresponding positioning ring 23, so as to achieve the limitation of the maximum sliding distance of the abutment post 14.

When the two feeding shafts 52 are far away from each other and the control block 152 is gradually far away from the abutment post 14 under the driving of the corresponding compression spring 17, the mounting ring 19 drives the corresponding abutment post 14 to reset under the elastic force of the corresponding return spring 21. So that the clinch posts 14 gradually disengage from the inner wall of the roll core of the plastic film roll, thereby enabling the manufacturer to take off the plastic film roll.

Referring to fig. 1 and 2, a leveling roller 22 for plastic films to pass around is horizontally and rotatably connected to the support frame 1, the leveling roller 22 is located between the feeding shaft 52 and the tension roller 9, and the plastic films located between the feeding shaft 52 and the pressing roller 3 pass around the leveling roller 22. Therefore, the plastic film on the feeding shaft 52 firstly bypasses the smoothing roller 22 and then enters between the pressing roller 3 and the receiving roller 2, and the smoothing capacity in the plastic film feeding process is realized. Meanwhile, the middle position to the two end positions of the smoothing roller 22 are tapered, so that the plastic film can be unfolded towards the two ends of the smoothing roller 22 under the guiding action of the surface of the smoothing roller 22, and the wrinkle amount of the plastic film is reduced.

The implementation principle of the laminating equipment for the PVC film in the embodiment of the application is as follows: when the film is required to be coated, the film coil is aligned to one end of the feed roller 41, which is far away from the servo motor 42, and then the feed roller 41 is sleeved with the film coil, so that the side wall of the feed roller 41 is abutted against the inner wall of the winding core of the film coil. Then the film is wound around a plurality of tension rollers 9 in sequence, and then the film passes through between the pressing roller 3 and the receiving roller 2, and then the film is connected with an external winding mechanism.

The web of plastic film is then placed between the two feed shafts 52 and is brought into register with the film. And then the handwheel 12 is respectively rotated to drive the corresponding screw rod 112 to rotate, and the corresponding mounting block 51 is driven by the screw rod 112 to drive the corresponding feeding shaft 52, the control rod 151 and other components to horizontally move, so that the two feeding shafts 52 are respectively inserted from the corresponding ports of the plastic film coiled material. When the two levers 151 abut against each other, the hand wheel 12 is rotated further, at which point the two levers 151 move the respective control blocks 152 and the two control blocks 152 move away from each other.

At this time, the plurality of abutment columns 14 gradually extend out of the corresponding abdicating grooves 13 and abut against the inner wall of the roll core of the plastic film roll under the pushing of the side walls of the corresponding control blocks 152, thereby realizing the fixation of the plastic film roll. The plastic film is then passed around the smoothing roller 22 and is passed between the pressure roller 3 and the take-up roller 2, so that the plastic film is laid over the film. Subsequently, the plastic film is connected to an external winding mechanism.

Then, the plastic film and the film are wound by an external winding mechanism, and meanwhile, the feeding roller 41 is driven to rotate by the servo motor 42, so that the feeding of the film is realized. Meanwhile, the plastic film drives the two feeding shafts 52 and the plastic film coiled material to rotate, so that feeding of the plastic film is realized. Meanwhile, the driving motor 6 drives the pinch roller 3 and the driving gear 7 to rotate, and then the driven gear 8 drives the adapting roller 2 to move reversely under the driving of the driving gear 7. At this time, the pinch roller 3 presses the plastic film against the film, and the film coating operation of the film is further performed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a laminating equipment of PVC film, includes support frame (1), takeover roller (2) and pinch roller (3), takeover roller (2) with pinch roller (3) respectively the level rotate set up in on support frame (1), just pinch roller (3) are located the top of takeover roller (2), its characterized in that: be provided with film feeding mechanism (4) and plastic film feeding mechanism (5) on support frame (1), support frame (1) is gone up the level and is rotated and be provided with and be located plastic film feeding mechanism (5) with smooth roller (22) between pinch roller (3), smooth roller (22) confession plastic film feeding mechanism (5) with plastic film between pinch roller (3) is walked around, the middle part position of smooth roller (22) is the convergent form to both ends position.

2. The PVC film laminating device according to claim 1, wherein: plastic film feeding mechanism (5) include two respectively horizontal sliding set up in installation piece (51) and horizontal rotation on support frame (1) set up in every pay-off axle (52) on installation piece (51), two pay-off axle (52) are coaxial and are used for inserting respectively to the plastic film coiled material roll up the core in, two installation piece (51) are used for being close to each other or keeping away from, every installation piece (51) with all be provided with drive assembly (11) between support frame (1), drive assembly (11) are used for driving corresponding installation piece (51) horizontal sliding.

3. The PVC film laminating device according to claim 2, wherein: the feeding shafts (52) are connected with the corresponding mounting blocks (51) through a manual tension control instrument (10).

4. The PVC film laminating device according to claim 2, wherein: each driving assembly (11) comprises a mounting plate (111) and a screw rod (112) in threaded connection with the corresponding mounting plate (111), and the two screw rods (112) are respectively in rotary connection with the corresponding mounting blocks (51).

5. The PVC film laminating device according to claim 4, wherein: hand wheels (12) are respectively arranged on the two screw rods (112).

6. The PVC film laminating device according to claim 2, wherein: the two lateral walls of one end, close to each other, of the feeding shafts (52) are respectively provided with a plurality of yielding grooves (13), the yielding grooves (13) are distributed along the corresponding circumferential direction of the feeding shafts (52), each yielding groove (13) is internally provided with a pressing column (14) in a sliding mode along the radial direction of the feeding shafts (52), and the feeding shafts (52) are provided with control mechanisms (15) used for driving the corresponding pressing columns (14) to slide.

7. The PVC film laminating device according to claim 6, wherein: the end faces, close to each other, of the two feeding shafts (52) are respectively provided with a plurality of control grooves (16) communicated with the corresponding abdicating grooves (13), the control mechanism (15) is a control rod (151) horizontally arranged in each control groove (16) in a sliding manner and a round platform-shaped control block (152) arranged on each control rod (151), the two control rods (151) are used for mutually abutting against and are respectively positioned between the two control blocks (152), the diameter, close to one end of each control rod (151) corresponding to the control block (152), of each control block (152) is larger than that of the other end of the control rod, the side wall of each control block (152) is abutted against the end of each abutting column (14), one end, close to the corresponding control block (152), of each abutting column (14) is provided with a mounting ring (19), and the port of each abdicating groove (13) is provided with a support ring (20), the mounting ring (19) is connected with the corresponding support ring (20) through a return spring (21), and one ends, far away from each other, of the two control blocks (152) are respectively connected with the groove bottom of the corresponding control groove (16) through a compression spring (17).

8. The PVC film laminating device according to claim 1, wherein: the supporting frame (1) is horizontally rotated to be provided with a plurality of tensioning rollers (9) which are respectively arranged between the film feeding mechanism (4) and the pressing rollers (3), and the tensioning rollers (9) are used for the film to be sequentially wound.

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